I got a Ruger 10-22 T when they first become available. Got three extra 10 shot magazines . Tuned up the trigger and put a thumbhole varmint glass bedded stock on it. I tried various brands of ammo and found that it liked Win 22 LR HP PP ammo. Put a Burris 6 X AO scope on it. It is accurate and has shot a lot of prairie dogs. There are a bunch of after market parts sold for the Ruger10-22 semi auto action. see www.rimfirecentral.com